常見例句At the top of the blowpipe, a hammer striking the alumina reservoir causes it to drop regularly onto a small rod.邊噴火，邊用鐵錘敲打鋁氧粉儲(chǔ)槽，使鋁氧粉熔漿有規(guī)律地滴落在一個(gè)小棒上。 返回 high-alumina